At 10 k cp, m(hg(s)) = 4.64 j k−1 mol−1. between 10 k and the melting point of hg(s), 234.3 k, heat capacity measurements indicate that the entropy increases by 57.74 j k−1 mol−1. the standard enthalpy of fusion of hg(s) is 2322 j mol−1 at 234.3 k. between the melting point and 298.0 k, heat capacity measurements indicate that the entropy increases by 6.85 j k−1 mol−1. determine the third-law standard molar entropy of hg(l) at 298 k.

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explanation:

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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